nylon 22
Remington made blue metal black stock models with a black diamond on the stock called the Black Diamond. They also made a chrome and black model called the Apache Black. As far as I can learn, they did not make a blue and black model with a white diamond. Both the Black Diamond and Apache Black simply say Nylon 66 on the grip cap.
CBC out of Brazil did make a Nylon 66 clone with blue steel and black stock with a white diamond. These were imported into the US by FIE, Kassner or Mag Tec. I don't know who might have imported them to Austrailia but I know they went there. The CBC FIE model is known as the GR8 Black Beauty. It will say CBC on it and GR8 on the receiver cover. The other CBC models will be similarly marked, the Mag Tec version is called the MT66.
CBC out of Brazil did make a Nylon 66 clone with blue steel and black stock with a white diamond. These were imported into the US by FIE, Kassner or Mag Tec. I don't know who might have imported them to Austrailia but I know they went there. The CBC FIE model is known as the GR8 Black Beauty. It will say CBC on it and GR8 on the receiver cover. The other CBC models will be similarly marked, the Mag Tec version is called the MT66.